Email this article Sorption of Radionuclides onto Cerium(IV) Hydrogen Phosphate Ce(PO4)(HPO4)0.5(H2O)0.5
- Authors: Romanchuk A.Y.1, Shekunova T.O.1,2, Larina A.I.1, Ivanova O.S.2, Baranchikov A.E.1,2, Ivanov V.K.1,2, Kalmykov S.N.1,3
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Affiliations:
- Moscow State University
- Kurnakov Institute of General and Inorganic Chemistry
- Vernadsky Institute of Geochemistry and Analytical Chemistry
- Issue: Vol 61, No 6 (2019)
- Pages: 719-723
- Section: Article
- URL: https://ogarev-online.ru/1066-3622/article/view/225389
- DOI: https://doi.org/10.1134/S1066362219060134
- ID: 225389
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Abstract
The ability of cerium(IV) hydrogen phosphate Ce(PO4)(HPO4)0.5(H2O)0.5 to adsorb radionuclides was studied. The degree of sorption from aqueous solutions exceeds 95% at pH > 7 for Np(V), at pH > 9 for Sr(II), at pH > 5 for Am(III) and U(VI), and at pH > 2 for Th(IV). The radionuclides are rapidly and quantitatively leached from the sorbent surface in acid solutions; i.e., the sorption is reversible.
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About the authors
A. Yu. Romanchuk
Moscow State University
Author for correspondence.
Email: romanchuk.anna@gmail.com
Russian Federation, Moscow
T. O. Shekunova
Moscow State University; Kurnakov Institute of General and Inorganic Chemistry
Email: romanchuk.anna@gmail.com
Russian Federation, Moscow; Leninskii pr. 31, Moscow, 119991
A. I. Larina
Moscow State University
Email: romanchuk.anna@gmail.com
Russian Federation, Moscow
O. S. Ivanova
Kurnakov Institute of General and Inorganic Chemistry
Email: romanchuk.anna@gmail.com
Russian Federation, Leninskii pr. 31, Moscow, 119991
A. E. Baranchikov
Moscow State University; Kurnakov Institute of General and Inorganic Chemistry
Email: romanchuk.anna@gmail.com
Russian Federation, Moscow; Leninskii pr. 31, Moscow, 119991
V. K. Ivanov
Moscow State University; Kurnakov Institute of General and Inorganic Chemistry
Email: romanchuk.anna@gmail.com
Russian Federation, Moscow; Leninskii pr. 31, Moscow, 119991
S. N. Kalmykov
Moscow State University; Vernadsky Institute of Geochemistry and Analytical Chemistry
Email: romanchuk.anna@gmail.com
Russian Federation, Moscow; ul. Kosygina 19, Moscow, 119991
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